parallel port & breadboard

Feb 13, 2005 6 Replies
M

I have some LEDs, resistors, and a breadboard. I want to write a program that will make the LEDs flash in certain sequence (they are attached to the board.) i have to proper resistors and everything so i won't damage anything (i hope). i want to connect the breadboard to the PC through my parallel port, however, i am having a helluva time finding a device to do this. can someone point me in the right direction.



I am going to school for computer science. i am certainly no electric engineer, but i hope to learn.



Thanks in advance, Matt



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J

In response to what posted in news: snipped-for-privacy@g14g2000cwa.googlegroups.com:

you will need to be running W95 or W98 or earlier (or DOS), W2000/XP lock us out of our own parallel ports. Thanks a lot Bill.

Joe Soap. JUNK is stuff that you keep for 20 years, then throw away a week before you need it.
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J

In response to what posted in news: snipped-for-privacy@o13g2000cwo.googlegroups.com:

In that case - just connect the LEDs to the printer data lines, in series with 4k7 resistors to 0V and write to the port IO address.

Joe Soap. JUNK is stuff that you keep for 20 years, then throw away a week before you need it.
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S

A free little application called userport gives direct access to the hardware on NT/2K/XP. The below link has a couple simple demo links where you can bitbang the parallel port on my XP machine.

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T

Take a look at

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Tomi Engdahl (http://www.iki.fi/then/) Take a look at my electronics web links and documents at http://www.epanorama.net/
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B

If you are looking for parallel port connectors designed specifically for a breadboard, then have a look at the products at this site:

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HTH,

B.C.

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